The
North Coast Unified Air Quality Management District (District) is a regional environmental regulatory
agency which has jurisdiction over Humboldt, Del Norte and Trinity counties in Northern California.
The District's primary responsibility for controlling air pollution from stationary sources
and is committed to achieving and maintaining healthful air quality throughout its tri-county jurisdiction.

The
District is one of thirty-five local air agencies in California and enforces local, state and federal air
quality regulations.